Hanisha Koneru created HDDS-48:
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Summary: ContainerIO - Storage Management
Key: HDDS-48
URL: https://issues.apache.org/jira/browse/HDDS-48
Project: Hadoop Distributed Data Store
Issue Type: Improvement
Reporter: Hanisha Koneru
Assignee: Hanisha Koneru
Attachments: ContainerIO-StorageManagement-DesignDoc.pdf
We propose refactoring the HDDS DataNode IO path to enforce clean separation
between the Container management and the Storage layers. All components
requiring access to HDDS containers on a Datanode should do so via this Storage
layer.
The proposed Storage layer would be responsible for end-to-end disk and volume
management. This involves running disk checks and detecting disk failures,
distributing data across disks as per the configured policy, collecting
performance statistics and verifying the integrity of the data.
Attached Design Doc gives an overview of the proposed class diagram.
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